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All Journal International Journal of Applied Power Engineering (IJAPE) International Journal of Science and Engineering (IJSE) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL METANA Jurnal Kreatif Tadulako Online Jurnal Kesehatan Masyarakat Indonesian Journal of Conservation Waste Technology Primary: Jurnal Pendidikan Guru Sekolah Dasar Journal of Indonesian Tourism and Development Studies Al Fikra : Jurnal Ilmiah Keislaman Jurnal Teknik Mesin Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Tarbawi: Jurnal Keilmuan Manajemen Pendidikan Jurnal Teknologi Pendidikan PROSIDING SEMINAR NASIONAL PROGRAM PASCASARJANA Bioedukasi: Jurnal Pendidikan Biologi JURNAL PENDIDIKAN TAMBUSAI MUHARRIK: JURNAL DAKWAH DAN SOSIAL Telcomatics Bioinformatics and Biomedical Research Journal J-ESA (Jurnal Ekonomi Syariah) ANTHOR: Education and Learning Journal Paradoks : Jurnal Ilmu Ekonomi Jurnal Profesi Insinyur Indonesia Tabayyun JER Jurnal ELTEK Jurnal Sistem Informasi, Akuntansi dan Manajemen Reflection: Islamic Education Journal ANTHOR: Education and Learning Journal Warta Penelitian Perhubungan
Syafrudin Syafrudin
Environmental Engineering Department, Faculty Of Engineering, Diponegoro University Semarang
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Factors Influencing Teacher Motivation to Become School Principal in Serang City Syafrudin, Syafrudin; Hufad, Achmad; Fathurrohman, Maman
Tarbawi Vol 7 No 01 (2021): May 2021
Publisher : Jurusan Manajemen Pendidikan Islam Fakultas Tarbiyah dan Keguruan UIN Sultan Maulana Hasanuddin Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32678/tarbawi.v7i01.4534

Abstract

The value of recruiting and maintaining highly trained school leaders is rising in our country. This research aimed to determine factors that teacher’s motivation being school principals. The survey responses of 104 public school principals in Serang City, including 77 elementary school principals and 27 junior high school principals, were evaluated using exploratory factor analysis. According to the results, factors such as Challenge, Altruism, Professional Advantage, and Leadership Influence encourage teachers to move into administration. In contrast, factors such as Inadequate Gain/Personal Benefit, Personal Needs or Issues, and Elevated Risk deter teachers from being school principals.
The In Silico Analysis and Identification of Possible Inhibitor of H5N1 Virus: Compounds Analysis and Identification of Possible Neuraminidase Inhibitors Syafrudin, Syafrudin; Septiadi, Luhur; Alfaruqi, Nuri Thobibatus Shofia; Wahyudi, Didik; Kharisma, Viol Dhea
Bioinformatics and Biomedical Research Journal Vol. 1 No. 2 (2018): Volume 1 Issue 2
Publisher : Future Science

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Abstract

Fingerroot (Boesenbergia pandurata (Roxb.)) belongs to the family Zingiberaceae (Ginger). B. pandurata has pharmacological benefits such as neuroprotective, chemoprotective, anti-inflammatory, anti-angiogenic, antioxidant, an inhibitor of protease enzyme NS2B/NS3 dengue virus, Japanese encephalitis virus and swine flu virus (H1N1). This study aims to determine the most effective compounds from B. pandurata as neuraminidase inhibitors of H5N1 virus. The amino acid sequence for neuraminidase of avian influenza A virus subtype H5N1 of A/China/GD02/2006 was retrieved from protein sequence database at NCBI. Then, modeled by Swiss Model. Analyse of molecular docking was performed using PyRx and the interactions between neuraminidase inhibitors of H5N1 and B. pandurata active compound was analyzed by PyMol software and LigPlot+ software. From the 30 active compounds which have been docked, 4-hydroxypanduratin A, rubranine, boesenbergin B, boesenbergin A, 5,7-dimethoxyflavone, and tectochrysin had an equal or smaller free binding energy than control compound. 4-hydroxypanduratin A proved to be the most potent active compound as a neuraminidase inhibitor (NA 1) because it has the most negative binding energy and the same amino acid binding residue with the control compound. Therefore, 4-hydroxypanduratin A is predicted to be used as inhibitors of neuraminidase in the H5N1 virus.
Prediction of Novel Bioactive Compound from Zingiber officinale as Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs) of HIV-1 through Computational Study Kharisma, Viol Dhea; Septiadi, Luhur; Syafrudin, Syafrudin
Bioinformatics and Biomedical Research Journal Vol. 1 No. 2 (2018): Volume 1 Issue 2
Publisher : Future Science

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Abstract

Human immunodeficiency virus 1 (HIV-1) is one of the viruses of that causes AIDS in humans and disease outbreaks in this modern era. Reverse transcriptase (RT) enzyme though to be the functional enzyme that play a role on the HIV-1 virus replication. Bioactive compounds contained on Ginger (Zingiber officinale) is known to inhibit viral replication. This study aims to determine the alternative bioactive compounds contained on Ginger (Zingiber officinale) as as a non-nucleoside reverse transcriptase (NNRTIs) HIV-1 inhibitors through computational study. The reverse transcriptase (RT) enzyme model was retrieved from protein sequence database (PDB) and validated with Ramachandran Plot and the compound contained on Ginger was retrieved from database. Analysis of molecular docking, performed using PyRx and the interactions between Reverse Transcriptase (RT) enzyme of HIV-1 virus and Zingiber officinale active compound was analyzed by PyMol and LigPlot+, also the drug-likeness molecule properties with The Lipinski Rule’s of Five. From 24 active compound which have been docked, ?-sitosterol proven to be the most potential bioactive compound as inhibitors of Reverse Transcriptase (RT) enzyme because it has more negative binding energy and the same amino acid residue with the control. Therefore, ?-sitosterol is predicted to be used as non-nucleoside reverse transcriptase (NNRTIs) HIV-1 inhibitors.
Hilangnya Identitas Budaya pada Perilaku Remaja Kabupaten Dompu (Studi Kasus : Dusun Ria Desa Riwo Kabupaten Dompu) Irwansyah, Irwansyah; Syafrudin, Syafrudin; Mulyati, Mulyati
Jurnal Pendidikan Tambusai Vol. 5 No. 3 (2021): 2021
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.12 KB)

Abstract

Penelitian ini dilatarbelakangi oleh banyaknya masalah yang di timbulkan oleh para remaja di Kabupaten Dompu, berdasarkan permasalahn tersebut penelitian ini bertujuan mendeskripsikan hilangnya identitas budaya pada perilaku remaja Kabupaten Dompu. Adapun metode dalam penelitian ini adalah menggunakan metode wawancara secara tatap muka, dokumentasi dan obeservasi, tentang hilangnya identitas budaya pada perilaku remaja kabupaten Dompu, dengan menggukan kemudian, informan yang di ambil berjumlah 5 orang di Dusun Ria , adapun jenis atau jabatan informan adalah sebagai berikut Tokoh Agama, Toko Masyarakat, Ahli budaya dan Tokoh pemuda. Berdasarkan hasil penelitian Hilanya identitas budaya pada perilaku remaja Kabupaten Dompu, ditemukan bahwa telah terjadi pengikisan budaya hal itu di buktikan dari adanya sikap remaja yang sangat jarang mengungkapkan kata santabe (permisi) dan kata Lembo Ade (lapang dada) pada setiap penerapan perilaku social mereka, tentunya hal telah membuktikan bahwa kemajuan jaman dan teknologi seperti halnya di ungkapkan oleh para informan tenyata tidak hanya mempengaruhi dunia pendidikan dan industri teknologi saja, namun kemajuan jaman dan teknologi ini juga membawa dampak buruk pada sikap dan perilaku remaja di Kabupaten Dompu lebih kususnya di Desa Riwo Dusun Ria.
THE EFFECT OF INFLUENT CONCENTRATION AND HYDRAULIC LOADING RATE (HLR) TO BOD AND COD REMOVAL ON ARTIFICIAL DOMESTIC WASTEWATER TREATMENT (GREY WATER) USING UASB REACTOR Syafrudin Syafrudin; Sudarno Sudarno; Purwanto Purwanto; Iin Novitasari
International Journal of Science and Engineering Vol 7, No 1 (2014)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.522 KB) | DOI: 10.12777/ijse.7.1.16-22

Abstract

Upflow anaerobic sludge blanket (UASB) reactor is one of anaerobic biological treatment was develop in late 1970’s. UASB reactor is suitable for the tropic areas because it has a high temperature about 20°-30°C. Domestic wastewater is divided into two types, namely black water and grey water. But in this case used domestic grey water. Grey water is household wastewater from showers, sinks and kitchen. Grey water has a total 75% of the domestic wastewater volume. The research was conducted in laboratory scale. This study performed a variation of Hydraulic Loading Rate (HLR) and the influent concentration. There were 25 reactors include 5 variations of influent concentration and 5 Hydraulic Loading Rate’s (HLR) variation. The research could asses BOD5 and COD removal with treatment in UASB. Efficiency of BOD5 removal by varying the influent concentration and HLR was about 38%-75% and COD was about 40%-77%. The lower concentration could be increase efficiency BOD5 and COD removal. Influent concentration optimum occurred when middle concentration was about 840 mg/L COD and HLR optimum was 0,05 m3/m2/hour.
Management of Peat Fires on Smoldering Phase (Case Study: District Siak and District Kampar Riau Province) Syafrudin Syafrudin; Haryono S. Huboyo; Bella Nasila D
Waste Technology Vol 3, No 2 (2015)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (574.266 KB) | DOI: 10.14710/3.2.47-54

Abstract

The difficulty of finding land for farming activities in Indonesia caused some communities began to switch utilizing peat land for agricultural areas such as oil palm. Oil palm plantation is a commodity that has been developed in Indonesia.Oil palm planted area has increased rapidly.Since 1967 extensive oil palm plantations has increased 35times to 5.6 million ha in 2005 and about 7.8 million ha in 2009. The biggest expansion of oil palm plantations occur in 6 province,one of them is Riau.Most people take a practical way to open agricultural areas by burning peat.Riau Province in Indonesia is one of the major hotspots for peat fires during the dry season. Peat fire at smouldering phaseemits a lot of compounds that are not completely oxidized (e.g. CO, VOCs, PAHs) that more dangerous than the emissions released during combustion at flaming fires. Particulate Matter (PM 2.5) is one of the emissions from peat fires too.However, existing data on VOCs and PM 2.5 of smoke from peat fires Indonesia is still limited.The aim of this study was to analyze the concentration of VOCs and PM 2.5 on emissions from peat fires in the Langkai Village Siak District and RimboPanjang Village Kampar District Riau Province when compared with background site and the permissible exposure limit and provide recommendations based on the results of this research.VOCs measurement method is based on NIOSH 1500 and EPA TO-17 while the PM 2.5 based on IMPROVE A method. The average concentration of PM 2.5 is 996.72 ± 531.01μg/m3. PM2.5 concentrations increased (compared with the background site) was very high at 4,838%.This condition causes a decrease in air quality and serious health problems. While the results of the maximum TVOCs concentration obtained in Siak District was 391,880 g/m3, while in Kampar Districtwas 195,940 g/m3. TVOCs concentration atSiak Districtwas 130.63 times greater than the existing quality standards, while at Kampar District regency was 65.31 times.Environmental improvement recommendations based on the results of this research were buffer zone areadesign to reduce air pollution as a result of peat fires and sealing the ditchs to prevent the spread of fires.
The Utilization of Bottom Ash Coal for Briquette Products by Adding Teak Leaves Charcoal, Coconut Shell Charcoal, and Rice Husk Charcoal Syafrudin Syafrudin; Badrus Zaman; Indriyani Indriyani; A. Stevie Erga; H. Bunga Natalia
Waste Technology Vol 3, No 1 (2015)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.141 KB) | DOI: 10.14710/3.1.14-21

Abstract

The limitations of the availability of energy sources especially fuel oil has become a serious threat for the society. The use of coal for energy source as the replacement of fuel oil, in one hand, is very profitable, but on the other hand, will cause problem which is the coal ash residue. This coal ash is a by-product of coal combustion. This coal ash contains bottom ash. Through this observation, the bottom ash can be processed to be charcoal if added by teak leaves, coconut shell, and rice husk. Also, this observation needs to add binder materials for further processing in order to form briquette. It can be used as alternative fuel, the utilization of bottom ash and biomass will give positive impact to the environment. This observation was conducted by using compositions such as bottom ash, teak leaves, coconut shell, and rice husk. The treatment was using comparison 100%:0% ; 80%:20% ; 60%:40% ; 50%:50% ; 40%:60% ; 20%:80% ; 0%:100%. The result that the best briquette was on the composition of 20% bottom ash : 80% coconut shell. The characteristic values from that composition were moisture content of 3.45%, ash content of 17,32%, calorific value of 7.945,72 Cal/gr, compressive strength of 2,18 kg/cm2, level of CO of 105 mg/m3, and heavy metals Cu of 29,83 µg/g and  Zn 32,99 µg/g. The characteristic value from each briquette composition treatment showed that the increasing usage proportion of biomass as added material for briquette was able to increase its moisture content and calorific value. Besides, it is also able to decrease its ash content and compressive strength
Potensi Material Sampah Combustible pada Zona II TPA Jatibarang Semarang sebagai Bahan Baku RDF (Refuse Derived Fuel) Lucy Amena Sembiring; Ika Bagus Priyambada; Ganjar Samudro; Baskoro Lokahita; Irawan Wisnu Wardhana; Mochtar Hadiwidodo; Syafrudin Syafrudin
Jurnal Teknik Mesin Vol 7, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v7i1.2240

Abstract

Jumlah penduduk yang meningkat juga meningkatkan jumlah kebutuhan energi. Namun, sumber daya yang tersedia juga semakin berkurang. Sehingga perlu digantikan dengan energi yang baru. Sampah yang meningkat dan pengolahan yang sangat sedikit dapat dijadikan sumber energi yang baru bagi masyarakat dengan konsep waste to energy (WTE). Salah satunya yaitu dengan mengubah sampah menjadi bahan baku RDF (refuse-derived fuel). RDF merupakan salah satu teknik penanganan sampah dengan mengubah sampah menjadi sesuatu yang bermanfaat yaitu bahan bakar. Sampah sangat berpotensi menjadi bahan baku RDF terutama organik dan plastik sebagai sampah yang mudah terbakar (combustible). Sampah tersebut dapat dimanfaatkan menjadi bahan baku RDF dengan cara menganalisis nilai kalor yang dihasilkan. Untuk menganalisis nilai kalor pada sampah combustible zona aktif II TPA Jatibarang dapat dilakukan dengan cara pengujian sampel sebanyak 100 gram dengan alat bom kalorimeter. Sampel tersebut diambil pada kedalaman 0-3 m dengan metode random sampling. Kemudian akan didapat nilai kalor tinggi yang dihasilkan sampel tersebut. Nilai Kalor Tinggi yang dihasilkan sampel tersebut sebesar 5,69 kkal/ton pada kedalaman 0-1 m, 6,07 kkal/ton pada kedalaman 1-2 m dan 5,94 kkal/ton pada kedalaman 2-3 m. Nilai kalor tinggi yang dihasilkan sampah combustible tersebut menunjukkan bahwa semakin rendah kedalaman sampah maka akan semakin tinggi nilai kalor yang dihasilkan dan sampah tersebut berpotensi sebagai bahan baku RDF. 
Potensi Sampah Combustible pada Zona Aktif 1 TPA Jatibarang Semarang sebagai Bahan Baku RDF (Refuse Derived Fuel) Rizki Tri Andrianingsih; Ganjar Samudro; M. Arief Budihardjo; Baskoro Lokahita; Syafrudin Syafrudin; Mochtar Hadiwidodo; Irawan Wisnu Wardhana
Jurnal Teknik Mesin Vol 7, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v7i1.2239

Abstract

Banyaknya produksi sampah di Semarang menyebabkan timbulan sampah di TPA Jatibarang semakin meningkat. Untuk mengurangi timbulan sampah, perlu adanya energi alternatif. Oleh karena itu, produksi refuse derived fuel (RDF) dapat menjadi salah satu solusi positif dalam penyelesaian masalah ini. Pemanfaatan energi dari limbah dikenal sebagai Waste-to-Energy (WTE). Pemanfaatan limbah menjadi energi sangat berhubungan dengan nilai kalor. Pada kajian ini, sampah combustible dari zona aktif 1 TPA Jatibarang akan dihitung nilai kalor tingginya dengan bom kalorimeter. Sampah diambil pada kedalaman 0-1 m, 1-2 m, dan 2-3 m di bawah permukaan timbulan sampah. Nilai kalor yang dihasilkan sampel tersebut sebesar 6,07 kkal/ton pada kedalaman 0-1 m, 5,56 kkal/ton pada kedalaman 1-2 m dan 5,55 kkal/ton pada kedalaman 2-3 m. Hal ini menunjukkan bahwa semakin tinggi kedalaman maka semakin tinggi pula nilai kalornya, sehingga sampah zona aktif 1 TPA Jatibarang memiliki potensi yang tinggi untuk diolah menjadi RDF.
ANALISA PERBEDAAN LPS (LAST PLANNER SYSTEM) DENGAN SISTEM KONVENSIONAL SERTA PENGARUH CPM DAN BAR CHART PADA LPS Sadhu Adwitya A; M. Agung Wibowo; Syafrudin Syafrudin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 25, No 1 (2020): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v25i1.1919

Abstract

Two generally method / tools which used in project construction management system in Indonesia and the name are CPM (critical part method) or network planning and Bar Chart. The system used general method called conventional management system. Nowadays, was appeared one of a new system which seldom to applied in Indonesia, it is called LPS (last planner system). This research, researcher doing analyzed the differences between LPS and conventional management system. The result which obtained in this research are LPS dominated to accentuates team collaborative in the scheduling planning, resource allocation, control and enhance of work productivity, issue solved, regularly scheduling planning. Conventional management system more rely on the way CPM and Bar Chart working in that system with project manager decision. Planning of the schedule in this system doing by scheduling team. rescheduling in this system is not routine, it’s depend by construction progress. CPM and Bar Chart methods is influence on LPS. The both of methods was appeared in master scheduling, look a head scheduling, weekly work planning, shielding production, workable back log, percent plan completed and reliable promise process
Co-Authors . Widayat A'yun, Husnul Karimah Qurrata A, Sadhu Adwitya A. Stevie Erga Abdullah, Nabil Izza Achmad Hufad Agung Wardana Agus Hartoko Alfaruqi, Nuri Thobibatus Shofia Alvin, Arya Alam Anastasya, Windy Divaci Andy Riski Pratama Anik Sarminingsih, Anik Arieyanti Dwi Astuti, Arieyanti Dwi Arifmiboy, Arifmiboy Astri Purnama Dewi Astuti, Farida Afriani Badrus Zaman Bagus Sujiwo Bambang Riyanto Baskoro Lokahita Bella Nasila D Budi Prasetyo Samadikun Budianto, Tri Hendrawan Budiharjo, M. Arief Budiyono Budiyono Confera, Akbar Nugroho Darul Ilmi Didik Wahyudi Dinah Husniah Fauzia Rahmiyati Yazid Fauziyah, Fita Firmansyah, Anton Ganjar Samudro Ganjar Samudro H Hadiyanto H. Bunga Natalia Harusda, Dadhan Haryono S. Huboyo Hayat, Nurul Henny Juliani, Henny Hernoni Septiani, Hernoni Iin Novitasari Ika Bagus Priyambada Indah Susilowati Indriyani Indriyani Iqbal Syaichurrozi Irawan Wisnu Wardhana Irwansyah Irwansyah Iswantir M Julian Marfal Karsam Karsam Khalish, Alif Akram Kharisma, Viol Dhea Kismartini Kismartini Larasati, Dyanung Latifa , Nurrahmi Latifa, Maysa Lucy Amena Sembiring M. Agung Wibowo M. Agung Wibowo Mahmud Mahmud Maman Fathurrohman, Maman Matin, Hashfi Hawali Abdul Mochamad Arief Budihardjo Mochtar Hadiwidodo Muhammad Helmi Muhiddinur Kamal Muktiono Waspodo Mulyati Mulyati Nurandani Hardyanti Nurmaesyarah, Nurmaesyarah Nurul Awaliah Nurul Renaningtias, Nurul Paranita, Debbie Yuliana Purwanto Purwanto Putri, Soraya Annisa Rachman, Rhesma Sylvia Rafiuddin, Rafiuddin Ramadan, Bimastyaji Surya Ratih Pujiastuti Rizki Tri Andrianingsih Rudy Kurniawan S. Suripin Sadhu Adwitya A Sani, Muhammad Thariq Sejati, Anang Wahyu Septiadi, Luhur Setyorini, Rita Agus Silviana Silviana Siswati, Muji SITI RACHMAWATI Sri Sumiyati Sriyana Sriyana Subhan, Ega Saiful Sudarno Sudarno Sudarwanto, Anang Suherman, Suherman Sulardjaka Sulardjaka Sumiati Sumiati Susanti, Yuari Sutrisno, Sutrisno Suyadi, Andri Utami, Khurnia Tri Vitus Dwi Yunianto Budi Ismadi Wahyuni, Retno Hari Wati, Hessy Rahma Wedra Aprison Wicaksono, Vinsensius Priyo Winardi Dwi Nugraha Yulius Yulius Yusa Eko Saputro, Yusa Eko Zainal Abidin Arief ZAMAN, Badrus Zulhanudin, Al Farick